docstr: Run as a command
docstr_tok: ["Run","as","a","command"]
code: def run_cmd(self, argvs):
      """
      Run as a command
      """
      results = self.model.run_cmd(argvs)
      return results
  
file_path: PaddleHub/modules/image/text_recognition/chinese_cht_ocr_db_crnn_mobile/module.py
imports: import paddlehub
  from paddleocr.ppocr.utils.logging import get_logger
  from paddleocr.tools.infer.utility import base64_to_cv2
  from paddlehub.module.module import moduleinfo, runnable, serving
label_desc: Use image node_id 4 for calling the ChineseChtOCRDBCRNNMobile obj's underlying member method code with example usage: obj.run_cmd(argvs) and returns: results